Recent questions tagged capacitor

Energy stored in capacitor examples

Series and parallel capacitor problem

Problem on capacitor

For a DC circuit capacitor is

What is a capacitor voltage transformer? A) It is a transformer used in power systems to step up low voltage signals and provide extra high voltage B) It is a transformer used in power systems to step up high voltage signals and provide extra high voltage C) It is a transformer used in power systems to step down extra high voltage signals and provide low voltage D) None of these

What happens to the capacitance if mica is inserted between the plates of an air capacitor? A) The capacitance increases B) The capacitance decreases C) The capacitance remains the same D) The capacitance becomes zero

What is the charge on each capacitor when a 150 V is applied across two capacitors with values 5 μF and 10 μF, connected in series? A) 500 μC B) 0.5 μC C) 0.5 C D) None of these

What is the stored energy when 200 V is applied across a 7 μF capacitor? A) 1400 Joules B) 0.7 Joules C) 0.14 Joules D) None of these

Which of the following can be used to measure the capacitance of a capacitor? A) Rheostat B) Schering bridge C) Wheatstone bridge D) None of these

Dielectric loss in a capacitor is best measured by (A) Wien Bridge (B) Schering Bridge (C) Anderson Bridge (D) Heaviside-Campbell Equal Ratio Bridge

A capacitor is generally a?

Power factor of an inductive circuit is usually improved by connecting capacitor to it in?

The best place to install a capacitor is?

The reactance offered by a capacitor to alternating current of frequency 50 Hz is 20 Q. If frequency is increased to 100 Hz, reactance becomes_____ohms.

When a capacitor was connected to the terminal of ohmmeter, the pointer indicated a low resistance initially and then slowly came to infinity position. This shows that capacitor is ?

A capacitor-start single phase induction motor is switched on to supply with its capacitor replaced by an inductor of equivalent reactance value. It will?

Can we use the synchronous motor as the synchronous capacitor?

What are the characteristics of a capacitor?

Which capacitor is used for high frequency?

What is the role of a capacitor in a circuit?

Why shunt capacitor is used?

Why capacitor bank is used?

What is the basic use of capacitor?

What is the basic function of a capacitor?

How do you discharge a capacitor in a microwave?

What is the direction of flow when charging a capacitor?

How do you charge a capacitor with a battery?

What is the symbol of a capacitor?

How do I discharge a capacitor?

How do you know when a capacitor is bad?

Which side of a capacitor is negative?

How do you test a capacitor with a multimeter?

Which energy is stored in capacitor?